參數(shù)資料
型號: NCP1421D
廠商: ON SEMICONDUCTOR
元件分類: DC/DC變換器
英文描述: 600 mA Sync-Rect PFM Step-Up DC-DC Converter Step-Up DC-DC Converter with True-Cutoff and Ring-Killer
中文描述: 600毫安同步整流PFM升壓型DC - DC轉換器升壓型DC - DC轉換器與True - Cutoff和Ring殺手
文件頁數(shù): 7/14頁
文件大?。?/td> 116K
代理商: NCP1421D
NCP1421
http://onsemi.com
7
TYPICAL OPERATING CHARACTERISTICS
10
5
5
10
10
100
1000
V
OUT
= 3.3 V
L = 5.6 H
C
IN
= 22 F
C
OUT
= 22 F
T
A
= 25 C
0
1.5
10
20
30
40
50
1.7
BATTERY INPUT VOLTAGE, V
BATT
/V
1.9
2.1
2.3
2.5
Figure 14. Output Voltage Change vs. Load
Current
Figure 15. Output Voltage Change vs. Load
Current
Figure 16. Battery Input Voltage vs. Output Ripple
Voltage
Figure 17. Low Battery Detect
Figure 18. No Load Operating Current vs. Input
Voltage at OUT Pin
V
IN
= 2.5 V
V
IN
= 2.0 V
0
OUTPUT LOADING CURRENT, I
LOAD
/mA
O
10
5
5
10
10
100
1000
V
OUT
= 5.0 V
L = 5.6 H
C
IN
= 22 F
C
OUT
= 22 F
T
A
= 25 C
V
IN
= 3.3 V
V
IN
= 1.5 V
0
OUTPUT LOADING CURRENT, I
LOAD
/mA
O
V
IN
= 2.5 V
300 mA
R
R
/
p
100 mA
500 mA
V
IN
= 2.5 V
V
OUT
= 3.3 V
L = 6.8 H
C
IN
= 22 F
C
OUT
= 22 F
T
A
= 25 C
Upper Trace:
Input Voltage Waveform, 1.0 V/Division
Lower Trace: Output Voltage Waveform, 2.0 V/Division
Figure 19. Startup Transient Response
2.5
5.0
7.5
10
12.5
15
1.5
2.0
2.5
3.0
3.5
5.0
INPUT VOLTAGE AT OUT PIN, V
OUT
/V
N
B
/
4.0
4.5
Upper Trace:
Voltage at LBI Pin, 1.0 V/Division
Lower Trace: Voltage at LBO Pin, 1.0 V/Division
V
IN
= 2.5 V
V
OUT
= 5.0 V
I
LOAD
= 10 mA
相關PDF資料
PDF描述
NCP1422MNR2 800 mA Sync−Rect PFM Step−Up DC−DC Converter with True−Cutoff and Ring−Killer
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